Home / 2,290.40-3,432.79-973.61

Finding the Fourth Proportional to 2,290.40, 3,432.79 and 973.61

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Solution

The fourth proportional to 2,290.40, 3,432.79 and 973.61 is: 1,459.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,290.40 : 3,432.79 = 973.61 : x
  2. Step 2: Convert to fraction form
    2,290.40/3,432.79 = 973.61/x
  3. Step 3: Cross multiply
    2,290.40x = 3,432.79 × 973.61
  4. Step 4: Simplify right side
    2,290.40x = 3,342,198.67
  5. Step 5: Solve for x
    x = 3,342,198.67/2,290.40
  6. Step 6: Final answer
    x = 1,459.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.